/* ===========================================================
   THEMES.CSS — Премиальная тёмная тема Gramaton Messenger
   Стек: Glassmorphism + Неоновые градиенты + OLED-чёрный
   =========================================================== */

/* ── CSS-переменные (Design Tokens) ────────────────────────── */
:root {
  /* Базовые цвета */
  --bg-primary: #000000;
  --bg-secondary: #050112;
  --bg-tertiary: #0A0224;
  --bg-glass: rgba(18, 11, 34, 0.45);
  --bg-glass-hover: rgba(30, 18, 50, 0.6);
  --bg-glass-active: rgba(40, 25, 65, 0.7);

  /* Текст */
  --text-primary: #FFFFFF;
  --text-secondary: rgba(255, 255, 255, 0.7);
  --text-tertiary: rgba(255, 255, 255, 0.4);
  --text-accent: #C084FC;

  /* Неоновые градиенты */
  --neon-purple: linear-gradient(135deg, #7A22A6, #3B1154);
  --neon-gold: linear-gradient(135deg, #FFB800, #4A3300);
  --neon-blue: linear-gradient(135deg, #00A3FF, #002940);
  --neon-cyan: linear-gradient(135deg, #06B6D4, #003340);
  --neon-green: linear-gradient(135deg, #22C55E, #0A4220);

  /* Цвета для неон-рамок */
  --border-purple: rgba(122, 34, 166, 0.4);
  --border-gold: rgba(255, 184, 0, 0.3);
  --border-blue: rgba(0, 163, 255, 0.3);
  --border-cyan: rgba(6, 182, 212, 0.3);

  /* Glassmorphism */
  --glass-blur: 25px;
  --glass-blur-mobile: 10px;
  --glass-radius: 16px;
  --glass-radius-sm: 10px;
  --glass-border: 1px solid var(--border-purple);

  /* Тени */
  --shadow-neon-purple: 0 0 20px rgba(122, 34, 166, 0.15), 0 0 60px rgba(122, 34, 166, 0.05);
  --shadow-neon-gold: 0 0 20px rgba(255, 184, 0, 0.1), 0 0 60px rgba(255, 184, 0, 0.03);
  --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.4);

  /* Размеры */
  --sidebar-width: 280px;
  --topbar-height: 56px;
  --input-height: 64px;
  --radius-full: 9999px;

  /* Типографика */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-size-xs: 11px;
  --font-size-sm: 13px;
  --font-size-base: 14px;
  --font-size-lg: 16px;
  --font-size-xl: 20px;
  --font-size-2xl: 24px;

  /* Анимации */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 350ms cubic-bezier(0.22, 1, 0.36, 1);
  --transition-spring: 500ms cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* ── Базовый сброс и глобальные стили ─────────────────────── */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html, body {
  height: 100%;
  overflow: hidden;
}

body {
  font-family: var(--font-primary);
  font-size: var(--font-size-base);
  color: var(--text-primary);
  background: var(--bg-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ── Звёздный фон ─────────────────────────────────────────── */
.starfield {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(ellipse at 20% 50%, rgba(122, 34, 166, 0.08) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 20%, rgba(0, 163, 255, 0.06) 0%, transparent 50%),
    radial-gradient(ellipse at 50% 80%, rgba(255, 184, 0, 0.04) 0%, transparent 50%);
}

.starfield::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image:
    radial-gradient(1px 1px at 10% 20%, rgba(255,255,255,0.3) 0%, transparent 100%),
    radial-gradient(1px 1px at 30% 65%, rgba(255,255,255,0.2) 0%, transparent 100%),
    radial-gradient(1.5px 1.5px at 50% 10%, rgba(255,255,255,0.4) 0%, transparent 100%),
    radial-gradient(1px 1px at 70% 40%, rgba(255,255,255,0.2) 0%, transparent 100%),
    radial-gradient(1px 1px at 80% 80%, rgba(255,255,255,0.3) 0%, transparent 100%),
    radial-gradient(1.5px 1.5px at 90% 15%, rgba(255,255,255,0.2) 0%, transparent 100%),
    radial-gradient(1px 1px at 15% 90%, rgba(255,255,255,0.15) 0%, transparent 100%),
    radial-gradient(1px 1px at 45% 45%, rgba(255,255,255,0.1) 0%, transparent 100%),
    radial-gradient(1.5px 1.5px at 60% 55%, rgba(255,255,255,0.25) 0%, transparent 100%),
    radial-gradient(1px 1px at 25% 35%, rgba(255,255,255,0.15) 0%, transparent 100%),
    radial-gradient(1px 1px at 5% 70%, rgba(200,200,255,0.2) 0%, transparent 100%),
    radial-gradient(1.5px 1.5px at 75% 30%, rgba(200,200,255,0.15) 0%, transparent 100%),
    radial-gradient(1px 1px at 35% 75%, rgba(255,255,255,0.1) 0%, transparent 100%),
    radial-gradient(1px 1px at 65% 5%, rgba(200,200,255,0.2) 0%, transparent 100%),
    radial-gradient(1.5px 1.5px at 55% 60%, rgba(255,255,255,0.15) 0%, transparent 100%);
  opacity: 0.6;
}

/* ── Glassmorphism-карточки ────────────────────────────────── */
.glass-card {
  background: var(--bg-glass);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: var(--glass-border);
  border-radius: var(--glass-radius);
  box-shadow: var(--shadow-card);
}

.glass-card-sm {
  background: var(--bg-glass);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: var(--glass-border);
  border-radius: var(--glass-radius-sm);
}

.glass-card-hover:hover {
  background: var(--bg-glass-hover);
  border-color: rgba(122, 34, 166, 0.6);
  box-shadow: var(--shadow-neon-purple);
  transition: all var(--transition-base);
}

/* ── Неоновые рамки ────────────────────────────────────────── */
.neon-border-purple {
  border: 1px solid var(--border-purple);
  box-shadow: var(--shadow-neon-purple);
}

.neon-border-gold {
  border: 1px solid var(--border-gold);
  box-shadow: var(--shadow-neon-gold);
}

.neon-border-blue {
  border: 1px solid var(--border-blue);
}

/* ── Кнопки ────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  border: none;
  border-radius: var(--glass-radius-sm);
  font-family: var(--font-primary);
  font-size: var(--font-size-sm);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background: var(--neon-purple);
  color: var(--text-primary);
  box-shadow: var(--shadow-neon-purple);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 20px rgba(122, 34, 166, 0.3);
}

.btn-primary:active {
  transform: translateY(0px);
}

.btn-gold {
  background: var(--neon-gold);
  color: #1a1a1a;
  box-shadow: var(--shadow-neon-gold);
}

.btn-gold:hover {
  transform: translateY(-1px);
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.btn-ghost:hover {
  background: var(--bg-glass);
  border-color: var(--border-purple);
  color: var(--text-primary);
}

.btn-icon {
  width: 40px;
  height: 40px;
  padding: 0;
  border-radius: var(--radius-full);
  font-size: var(--font-size-lg);
}

.btn-icon-sm {
  width: 32px;
  height: 32px;
  padding: 0;
  border-radius: var(--radius-full);
  font-size: var(--font-size-base);
}

/* ── Скроллбар ─────────────────────────────────────────────── */
::-webkit-scrollbar {
  width: 6px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: rgba(122, 34, 166, 0.3);
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: rgba(122, 34, 166, 0.5);
}

/* Firefox */
* {
  scrollbar-width: thin;
  scrollbar-color: rgba(122, 34, 166, 0.3) transparent;
}

/* ── Утилиты ───────────────────────────────────────────────── */
.text-gradient-purple {
  background: var(--neon-purple);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.text-gradient-gold {
  background: var(--neon-gold);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.text-gradient-blue {
  background: var(--neon-blue);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.text-gradient {
  background: linear-gradient(135deg, #C084FC, #7C3AED, #3B82F6);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.glass-divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-purple), transparent);
  margin: 8px 0;
}

/* ── Анимация появления ────────────────────────────────────── */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInScale {
  from { opacity: 0; transform: scale(0.95); }
  to { opacity: 1; transform: scale(1); }
}

@keyframes shimmer {
  0% { background-position: -200% center; }
  100% { background-position: 200% center; }
}

.fade-in {
  animation: fadeIn 0.4s ease forwards;
}

.fade-in-stagger {
  opacity: 0;
  animation: fadeIn 0.4s ease forwards;
}

/* ── Индикатор загрузки ────────────────────────────────────── */
.loading-dots {
  display: inline-flex;
  gap: 4px;
  align-items: center;
}

.loading-dots span {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--border-purple);
  animation: pulse 1.5s ease-in-out infinite;
}

.loading-dots span:nth-child(2) {
  animation-delay: 0.2s;
}

.loading-dots span:nth-child(3) {
  animation-delay: 0.4s;
}

@keyframes pulse {
  0%, 100% { opacity: 0.3; transform: scale(0.8); }
  50% { opacity: 1; transform: scale(1.2); }
}

/* ── Статус онлайн ─────────────────────────────────────────── */
.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  display: inline-block;
  position: relative;
}

.status-dot.online {
  background: #22C55E;
  box-shadow: 0 0 8px rgba(34, 197, 94, 0.5);
}

.status-dot.offline {
  background: rgba(255, 255, 255, 0.2);
}

.status-dot.away {
  background: #F59E0B;
  box-shadow: 0 0 8px rgba(245, 158, 11, 0.3);
}

/* ── Badge/индикатор непрочитанных ─────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 18px;
  height: 18px;
  padding: 0 5px;
  border-radius: var(--radius-full);
  background: var(--neon-purple);
  color: var(--text-primary);
  font-size: 10px;
  font-weight: 700;
  line-height: 1;
}

/* ── Анимация отправки ─────────────────────────────────────── */
@keyframes sendPulse {
  0% { transform: scale(1); }
  50% { transform: scale(1.2); }
  100% { transform: scale(1); }
}

.btn-send:active {
  animation: sendPulse 0.2s ease;
}

/* ── Haptic touch (мобильные) ──────────────────────────────── */
@media (hover: none) and (pointer: coarse) {
  .btn:active {
    transform: scale(0.96);
  }
}